Dialogic DSI SS7MD Manual do Utilizador Página 138

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Chapter 7 Configuration Overview
7.2.2 High Speed Signaling Links Configuration
The Signaling Gateway supports HSL in accordance with ITU Q.703 Annex A. Two HSL links are configurable
on a Dialogic
®
DSI SS7HDP Network Interface Board using processor (EQU) values of x-1 or x-33 (x is the
board position).
The timeslot on the C7SLx TS parameter must be set to 0 for a HSL link, that is the timeslot for a HSL link
must be set to x-y-0 (x is the board position, y is the PCM value).
Only an HSL link can be configured on an unstructured PCM, and a T1 HSL link must be received on the same
board as it is processed. Additionally, an SS7 link cannot be changed from HSL to LSL or from LSL to HSL. A
timeslot (TS) can only be associated with a structured HSL link if it is not associated with a signaling link,
cross connect, monitoring or circuit group.
The following commands demonstrate HSL board, PCM and signaling link configuration.
cnboi:bpos=1,brdtype=ss7hdp-64-4,sigtype=ss7;
cnpci:pcm=1-1,pcmtype=e1,ff=uns;
cnpci:pcm=1-2,pcmtype=e1;
c7lsi:ls=1,nc=1,opc=10,dpc=20,ni=2,lssize=2,ss7md=itu14;
c7sli:c7link=1,equ=1-1,ts=1-1-0,ls=1,slc=0,m56k=0,hsl=y;
c7sli:c7link=2,equ=1-33,ts=1-2-0,ls=1,slc=1,m56k=0,hsl=y;
7.2.3 SS7 M2PA Operation
The Signaling Gateway is capable of replacing TDM SS7 links with signaling links operating over IP providing
the equivalent functionality to MTP layer 2 by using the SIGTRAN M2PA protocol. Typically M2PA signaling
links would be used when the Signaling Gateway is either offering longhaul over IP operation between two
SEPs, or when two Signaling Gateways are acting as a single Point Code and the inter Signaling Gateway SS7
link is provided by M2PA over IP.
For M2PA operation, rather than associating an EQU or TS with an SS7 signaling link (C7LINK), the SS7 link
is instead associated with a SIGTRAN link (SNLINK) defined to be of type M2PA. The SIGTRAN link is used to
identify a SCTP Association as being used for M2PA operation.
Figure 7. M2PA Example
Figure 7 shows an example of a Signaling Gateway connected to a SEP on the TDM side and a SEP on the IP
side.
Example MML for the SIGTRAN M2PA part of the above configuration is:
SNSLI:SNLINK=1,SNTYPE=M2PA,END=C,IPADDR=194.192.185.11,
HPORT=3565,PPORT=3565,LABEL=SEP2-1;
SNSLI:SNLINK=2,SNTYPE=M2PA,END=C,IPADDR=194.192.185.11,
HPORT=3566,PPORT=3566,LABEL=SEP2-2;
C7LSI:LS=2,OPC=3,DPC=2,LSSIZE=2,SS7MD=ITU14,NC=1,NI=2;
C7SLI:C7LINK=3,SNLINK=1,LS=2,SLC=0;
C7SLI:C7LINK=4,SNLINK=2,LS=2,SLC=1;
C7RTI:C7RT=2,NC=1,DPC=2,LS1=2;
SG
PC3
SEP
PC 1
SEP
PC 2
193.145.185.151
193.145.185.154
IP
Signaling
TDM
Signaling
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